wichteln/wichteln.py
Stefan Sterz b61d1dd8e2
fix: add a message id and html body to reduce spam score
these changes should lower the spam score for systems that use e.g.
spamassassin and increase the likelihood of the email being delivered.
2022-10-26 14:05:29 +02:00

109 lines
3.4 KiB
Python
Executable file

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
'''
This script creates randoms pairs from a list of participants in a secret santa
game and sends them an email to notify them who the person is that they should
buy presents for.
'''
# -*- encoding: utf-8 -*-
from argparse import ArgumentParser
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.utils import formatdate, make_msgid
import json
import random
import smtplib
parser = ArgumentParser()
parser.add_argument('-p', '--participants',
dest='pFileLocation',
default='participants.json',
help='read a list of participants from PARTICIPANTFILE',
metavar='PARTICIPANTFILE')
parser.add_argument('-c', '--config',
dest='cFileLocation',
default='config.json',
help='read the configuration from CONFIGFILE',
metavar='CONFIGFILE')
args = parser.parse_args()
# load and prepare a list containing all participants
with open(args.pFileLocation, 'r') as pFile:
participants = json.load(pFile)
# create a copy of the list to make choosing a partner easier
copy = list(enumerate(participants[:]))
# choose a partner for each participant
for i in range(len(participants)):
# if the last participant has only themselves left to choose, make them
# switch partners with another random participant
if len(copy) == 1 and participants[i] == copy[0][1]:
current = participants[i]
participants.remove(current)
partner = random.choice(participants)
current['partner'] = partner['partner']
partner['partner'] = current['name'] + ' (' + current['mail']+')'
participants.append(current)
break
# otherwise choose a random partner for each participant
else:
partner = random.choice(copy)
while partner[0] == i:
partner = random.choice(copy)
participants[i]['partner'] = partner[1]['name']+' ('+partner[1]['mail']+')'
copy.remove(partner)
# load mail server configuration and open smtp server connection
with open(args.cFileLocation, 'r') as cFile:
config = json.load(cFile)
server = smtplib.SMTP(config['server'], config['port'])
server.ehlo()
server.starttls()
server.ehlo()
server.login(config['user'], config['pass'])
# create emails for all participants and send them
# change the text for the mail here if you want to
for r in participants:
msg = MIMEMultipart('alternative')
msg['From'] = config['sender']
msg['To'] = r['mail']
msg['Subject'] = 'Wichteln 🎄'
msg['Message-ID'] = make_msgid(domain=config['sender']
.split('@')[1]
.strip('>'))
msg['Date'] = formatdate(localtime=True)
body = 'Lieb'+r['gender']+' '+r['name']+'!\n\n'
body += 'Du bist heuer Wichtel für '+r['partner']+'.\n'
body += 'Das Geschenk sollte nicht mehr als 50€ kosten.\n\n'
body += 'Frohe Weihnachten!\n— Dein Christkind 👼'
html = f"""
<html>
<head></head>
<body>
<p>Lieb{r['gender']} {r['name']}!<br><br>
Du bist heuer Wichtel für {r['partner']}.<br>
Das Geschenk sollte nicht mehr als 50€ kosten.<br><br>
Frohe Weihnachten!<br>
— Dein Christkind 👼
</p>
</body>
</html>
"""
msg.attach(MIMEText(body, 'plain', 'utf-8'))
msg.attach(MIMEText(html, 'html', 'utf-8'))
print("Sending email to", r['name'])
server.sendmail(config['sender'], r['mail'], msg.as_string())